* {
    margin: 0;
    padding: 0;
}

.container {
    border: 1px solid transparent;
    background: url("img/壁纸.jpg") no-repeat fixed center;
    background-size: cover;
    height: 719.6px;
}
.box {
    width: 500px;
    height: 425px;
    margin: auto;
    margin-top: 100px;
    background: snow;
    font-size: 12px;
    padding-top: 20px;
    border-radius: 15px;
}
input{
    width: 300px;
    height: 30px;
    margin: auto;
    font-size: 16px;
}
.user, .pas, .sure, .phone {
   
    width: 450px;
    height: 50px;
    margin-left: 40px;
    margin-bottom: 5px;
}
span {
    float: left;
    line-height: 35px;
    margin-left: 20px;
    font-size: 12px;
}
.rca {
    width: 300px;
    margin: auto;
}
.checkIn{
    width: 150px;
    height:40px;
    margin: auto;
    border-radius: 5px;
    text-align: center;
    line-height: 40px;
    font-size: 16px;
    font-weight: 600;
    background: cyan;
    color: white;
    margin-top: 30px;
}
p {
    font-size: 12px;
    color: red;
    display: none;
}
.title {
    width: 450px;
    margin: auto;
    text-align: center;
    font-weight: 800;
    color: skyblue;
    font-size: 30px;
    margin-bottom: 25px;
    margin-top: 20px;
}
.checkIn:hover {
    background: #22a6f2;
    cursor: pointer;
}
